document.write( "Question 429077: Could you please help me help my sick son with this problem. He has been out of school ill for 3 days and I am trying to help but, cannot remember how. A triangle has one side length 1 1/3 cm. and another side length 2 1/5 cm. the perimeter of the triangle is 7 1/30 cm. What is the length of the 3rd side. \n" ); document.write( "

Algebra.Com's Answer #298103 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!


\n" );
document.write( "Hi
\n" );
document.write( "Let x represent the length of the 3rd side.
\n" );
document.write( "Question states*** Converting info given to improper fractions
\n" );
document.write( " 4/3cm + 11/5 cm + x = 211/30 cm  |Multiplying each term by 30 
\n" );
document.write( " 40 + 66 + 30x = 211
\n" );
document.write( "          30x = 105
\n" );
document.write( "            x = 3.5cm Or 3 1/2 cm\r
\n" );
document.write( "\n" );
document.write( "CHECKING our Answer***
\n" );
document.write( "  4/3 + 11/5 + 7/2 = (40 + 66 + 105)/30 = 211/30 \n" );
document.write( "

\n" );